Composite repair system for corroded metallic pipelines: an overview of recent developments and modelling
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REVIEW ARTICLE
Composite repair system for corroded metallic pipelines: an overview of recent developments and modelling S. Budhe1 · M. D. Banea1 · S. de Barros1,2 Received: 1 August 2019 / Accepted: 24 November 2019 © The Japan Society of Naval Architects and Ocean Engineers (JASNAOE) 2019
Abstract Over the last few decades, polymeric composites have been increasingly used as repair material for corroded metallic pipelines, as it can restore the loading capacity and structural integrity of a damaged pipeline. Considerable researches have been carried out on the repair of corroded metallic pipes with fiber-reinforced polymer-based composites. Also, the repair methods have been continuously improving to reduce the time and cost, and increasing the safety and operational certainty. However, there are still many issues, problems, and challenges to be overcome for effective designs. Therefore, in this article, the main developments of the composite repair system components which influence the effectiveness of the composite repair of corroded pipelines were reviewed. The properties, role, and contributions of the fiber, matrix, and putty material on the composite-repaired pipe are briefly discussed. The analytical and numerical methods for failure analysis of composite repair systems were reviewed thoroughly. Composite repair thickness determined using analytical and numerical methods has been also discussed. Finally, in the conclusion section, the current challenges and opportunities are discussed to achieve a more effective design philosophy for the composite repair of metallic pipes. Keywords Metallic pipelines · Corrosion · Finite-element method · Composite repair system · Analytical modelling
1 Introduction Steel metallic pipelines are the most effective way to carry fluids over a long distance, especially in the petroleum, oil, and gas industry. There are millions of kilometers of metallic pipelines laid around the world to transport products including oil, natural gas, and water. These metallic pipelines are exposed to a harsh environment during the service period such as submerged in water (offshore unit), underground pipes (sewage pipelines), and above ground pipes (water pipelines). These harsh conditions lead to deterioration (damage) of the metallic pipeline and this is mainly due to corrosion [1–3]. In addition to the corrosion defect, other defects are dents, blisters, leakage, and cracks due to impact during installation and transportation of the metallic pipelines [4, 5]. Most common forms of pipeline defects are * S. Budhe [email protected] 1
Federal Center of Technological Education in Rio de Janeiro, CEFET/RJ, Rio de Janeiro, Brazil
Institut de Recherche en Génie Civil et Mécanique, Université de Nantes, Nantes, Saint‑Nazaire, France
2
shown in Fig. 1. The corrosion defect is common in metallic pipelines and the repair of the defective pipeline is recommended instead of its replacement with a new pipe, as it is more cost-effective [6]. Traditionally, the welding technique is used to
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